 {
 Sech(0) = 1,
 Sech(1/6*Pi*I) = 2/Sqrt(3), 
 Sech(1/5*Pi*I) = Sqrt(5)-1,  
 Sech(1/4*Pi*I) = Sqrt(2),  
 Sech(1/3*Pi*I) = 2,
 Sech(2/5*Pi*I) = 1+Sqrt(5), 
 Sech(1/2*Pi*I) = ComplexInfinity, 
 Sech(2/3*Pi*I) = -2,
 Sech(3/4*Pi*I) = -Sqrt(2),   
 Sech(4/5*Pi*I) = 1-Sqrt(5), 
 Sech(5/6*Pi*I) = -2/Sqrt(3), 
 Sech(Pi*I) = -1,
 Sech(7/6*Pi*I) = -2/Sqrt(3), 
 Sech(6/5*Pi*I) = 1-Sqrt(5),  
 Sech(5/4*Pi*I) = -Sqrt(2),
 Sech(4/3*Pi*I) = -2,          
 Sech(7/5*Pi*I) = -1-Sqrt(5),            
 Sech(3/2*Pi*I) = ComplexInfinity, 
 Sech(8/5*Pi*I) = 1+Sqrt(5),           
 Sech(5/3*Pi*I) = 2,
 Sech(7/4*Pi*I) = Sqrt(2),           
 Sech(9/5*Pi*I) = Sqrt(5)-1, 
 Sech(11/6*Pi*I) = 2/Sqrt(3),            
 Sech(2*Pi*I) = 1,          
           
 Sech(Infinity) = 0,
 Sech(ComplexInfinity) = Indeterminate 
}